Hair dyeing composition comprising an oxidation dye, a scleroglucan gum, an alcanolamine and a mineral alkaline agent

ABSTRACT

The disclosure relates to a composition for dyeing keratin fibers, in particular human keratin fibers such as hair, comprising one or more dyes, one or more scleroglucan gums in a total weight content greater than or equal to 0.5% relative to the total weight of the composition, one or more mineral alkaline agents, and one or more organic alkaline agents selected from the alkanolamines. The disclosure also relates to a method for dyeing keratin fibers using said composition and to a multi-compartment device suitable for implementing said composition.

CROSS REFERENCE TO RELATED APPLICATION

This is a national stage application of PCT/EP2019/066369, filedinternationally on Jun. 20, 2019, which claims priority to FrenchApplication No. 1855431, filed on Jun. 20, 2018, both of which areincorporated by reference herein in their entireties. The presentinvention relates to a composition for dyeing keratin fibers, inparticular human keratin fibers such as the hair, comprising one or moreoxidation dyes, one or more scleroglucan gums in a total weight contentof greater than or equal to 0.5% relative to the total weight of thecomposition; one or more mineral alkaline agents and one or more organicalkaline agents chosen from mineral alkanolamine(s).

The invention also relates to a dyeing process involving the applicationof said composition to keratin fibers, in particular human keratinfibers such as the hair, and also to a multi-compartment device that issuitable for implementing said dye composition.

The present invention relates to the field of dyeing keratin fibers andmore particularly to the field of hair dyeing.

Among the methods for dyeing human keratin fibers, such as the hair,mention may be made of oxidation dyeing or permanent dyeing. Moreparticularly, this form of dyeing uses one or more oxidation dyes,usually one or more oxidation bases optionally combined with one or morecouplers.

The variety of molecules used as oxidation bases and couplers allows awide range of colors to be obtained.

Oxidation dyeing processes thus consist in using with these dyecompositions a composition comprising at least one oxidizing agent,generally hydrogen peroxide, under alkaline pH conditions in the vastmajority of cases. The role of this oxidizing agent is to reveal thecoloring, via an oxidative condensation reaction between the oxidationdyes.

Oxidation dyeing must moreover satisfy a certain number of requirements.Thus, it must be free of toxicological drawbacks, it must enable shadesto be obtained in the desired intensity and it must show a good wearproperty in the face of external attacking factors such as light, badweather, washing, permanent waving, perspiration and rubbing.

The dyeing process must also make it possible to cover gray hair and,finally, must be as unselective as possible, i.e. it must make itpossible to produce the smallest possible color differences along thesame keratin fiber, which generally includes areas that are differentlysensitized (i.e. damaged) from its end to its root, so as to obtain themost uniform possible coloring of the keratin fibers. Dye compositionsmust also make it possible to give good cosmetic properties to keratinfibers, in particular care, softness and/or hold, and must have goodworking qualities, in particular they must be easy to apply, while atthe same time achieving visible (i.e. notably intense, chromatic),uniform and fast coloring results.

The compositions used in a dyeing process must also have good mixing andapplication properties on keratin fibers, and notably good rheologicalproperties so as not to run down the face, onto the scalp or beyond theareas that it is proposed to dye, when they are applied; this notablyallows uniform application from the roots to the ends.

The composition according to the invention also shows very goodstability over time for several weeks.

In particular, it is sought to obtain dye compositions that are stableover time for several weeks. For the purposes of the present invention,the term “stable” in particular means that physical properties such asthe appearance, the pH and/or the viscosity vary little or not at allover time, and in particular that the viscosity of the composition doesnot change or changes little during storage and/or that the compositiondoes not undergo phase separation during storage.

Specifically, it is desirable for the dye compositions to be stable overtime, in particular stable after 1 month at 45° C., or even after 2months at 45° C.

It is also sought to obtain dye compositions that are stable over a widepH range and in particular with respect to extreme pH values, forexample to alkaline pH values ranging from 9 to 12. Finally, the dyecompositions may occasionally be destabilized (undergo phase separation)by high contents of certain compounds, for instance of oxidation dyesand/or cationic compounds such as cationic polymers, and it is thusdesirable for these compositions to be stable under these conditions, inparticular for them not to undergo phase separation.

These aims and others are achieved by the present invention, one subjectof which is thus a composition (A) for dyeing keratin fibers, preferablyhuman keratin fibers such as the hair, comprising:

-   -   one or more oxidation dyes;    -   one or more scleroglucan gums in a total content of greater than        or equal to 0.5% by weight relative to the weight of the        composition;    -   one or more mineral alkaline agents; and    -   one or more alkaline agents chosen from alkanolamine(s).

Another subject of the invention relates to a ready-to-use compositionfor dyeing keratin fibers, in particular human keratin fibers such asthe hair, obtained after mixing a composition (A) comprising:

-   -   one or more oxidation dyes;    -   one or more scleroglucan gums in a total amount of greater than        or equal to 0.5% by weight relative to the weight of the        composition;    -   one or more mineral alkaline agents; and    -   one or more organic alkaline agents chosen from alkanolamine(s);    -   and a composition (B) comprising one or more chemical oxidizing        agents.

For the purposes of the invention, the term “ready-to-use composition”refers to any composition that is intended to be applied immediately tokeratin fibers.

The invention is also directed toward a process for dyeing keratinfibers, and in particular human keratin fibers such as the hair,involving the application to the fibers of a dye composition as definedpreviously, and of an oxidizing composition (B) comprising at least onechemical oxidizing agent, preferably chosen from hydrogen peroxideand/or one or more systems for generating hydrogen peroxide, preferablyfrom hydrogen peroxide, the oxidizing composition (B) being mixed withthe dye composition just before use (application to said fibers)(extemporaneously) or at the time of use, or alternatively the dyecomposition and oxidizing composition being applied sequentially withoutintermediate rinsing.

A subject of the invention is also a multi-compartment device (or “kit”)allowing the implementation of the composition for dyeing keratinfibers, preferably comprising at least two compartments, a firstcompartment containing the dye composition (A) as defined previously,and the second compartment containing at least one oxidizing composition(B) comprising at least one chemical oxidizing agent, preferably chosenfrom hydrogen peroxide and/or one or more systems for generatinghydrogen peroxide, preferably from hydrogen peroxide, the compositionsin the compartments being intended to be mixed before application, togive the formulation after mixing; in particular, the kit may be anaerosol device.

For the purposes of the present invention, the term “composition fordyeing” or “dye composition” means a composition intended to be appliedto keratin fibers, preferably human keratin fibers and in particular thehair, optionally after mixing with an oxidizing composition comprisingat least one chemical oxidizing agent. For the purposes of the presentinvention, the term “ready-to-use dye composition” or “ready-to-usecomposition” means a composition resulting from mixing a dye compositionand an oxidizing composition. The ready-to-use dye composition may beprepared just before application to said keratin fibers.

The compositions according to the invention thus make it possible togive very good dyeing performance on keratin fibers, notably in terms ofbuild-up, intensity, chromaticity and/or selectivity. They also affordcompositions which have good rheological properties so as not to rundown onto the face, the scalp or beyond the areas that it is proposed todye, when they are applied.

The compositions according to the invention are stable. For the purposesof the present invention, the term “stable” in particular means thatphysical properties such as the appearance, the pH and/or the viscosityvary little or not at all over time, and in particular that theviscosity of the composition does not change or changes little duringstorage and/or that the composition does not undergo phase separationduring storage. In particular, it is desirable for the dye compositionsto be stable over time, in particular stable after 1 month at 45° C., oreven after 2 months at 45° C.

Furthermore, the compositions according to the invention have theadvantage of being stable (of not undergoing phase separation)independently of the pH and in particular with respect to extreme pHvalues, especially to alkaline pH values of greater than or equal to 9,for example to alkaline pH values ranging from 9 to 12. Finally, thecompositions are preferably stable (do not undergo phase separation)even in the presence of a high content of certain compounds, forinstance of oxidation dyes and/or cationic compounds such as cationicpolymers.

Moreover, the compositions of the invention are advantageouslytranslucent, which gives them a visual appearance that the consumerfinds esthetic and attractive.

In particular, the compositions according to the invention afford verygood dyeing properties while at the same time reducing the unpleasantodors when compared with conventional dye compositions.

Other features and advantages of the invention will emerge more clearlyon reading the description and the examples that follow.

In the text hereinbelow, unless otherwise indicated, the limits of arange of values are included in that range, notably in the expressions“between” and “ranging from . . . to . . . ”.

The keratin fibers are preferably human keratin fibers, preferably thehair.

The expression “at least one” is equivalent to the expression “one ormore”.

Advantageously, the composition according to the invention has athickened texture, in cream or gel form, preferably in gel form,preferably it is translucent.

Thus, the composition according to the invention generally has, at roomtemperature (25° C.), a viscosity of greater than 50 cps, preferablybetween 200 and 100 000 cps, more preferentially between 500 and 50 000cps, even more preferentially between 800 and 10 000 cps, and betterstill from 1000 to 8000 cps measured at 25° C. at a spin speed of 200rpm using a rheometer such as a Rheomat RM 180 equipped with a No. 3 or4 spindle, the measurement preferably being taken after 60 seconds ofrotation of the spindle (after which time stabilization of the viscosityand of the spin speed of the spindle is observed).

Oxidation Dyes

Composition (A) according to the invention comprises one or moreoxidation dyes.

The oxidation dye precursors that may be used in the present inventionare generally chosen from oxidation bases, optionally combined with oneor more couplers.

The oxidation bases may preferably be chosen frompara-phenylenediamines, bis(phenyl)alkylenediamines, para-aminophenols,ortho-aminophenols and heterocyclic bases, and the addition saltsthereof.

Preferentially, the oxidation base(s) of the invention are chosen frompara-phenylenediamines and heterocyclic bases. Among thepara-phenylenediamines, examples that may be mentioned includepara-phenylenediamine, para-toluylenediamine,2-chloro-para-phenylenediamine, 2,3-dimethyl-para-phenylenediamine,2,6-dimethyl-para-phenylenediamine, 2,6-diethyl-para-phenylenediamine,2,5-dimethyl-para-phenylenediamine, N,N-dimethyl-para-phenylenediamine,N,N-diethyl-para-phenylenediamine, N,N-dipropyl-para-phenylenediamine,4-amino-N,N-diethyl-3-methylaniline,N,N-bis(β-hydroxyethyl)-para-phenylenediamine,4-N,N-bis(o-hydroxyethyl)amino-2-methylaniline,4-N,N-bis(β-hydroxyethyl)amino-2-chloroaniline,2-β-hydroxyethyl-para-phenylenediamine, 2-fluoro-para-phenylenediamine,2-isopropyl-para-phenylenediamine,N-(β-hydroxypropyl)-para-phenylenediamine,2-hydroxymethyl-para-phenylenediamine,2-methoxymethyl-para-phenylenediamine,N,N-dimethyl-3-methyl-para-phenylenediamine,N-ethyl-N-(β-hydroxyethyl)-para-phenylenediamine,N-(β,γ-dihydroxypropyl)-para-phenylenediamine,N-(4′-aminophenyl)-para-phenylenediamine,N-phenyl-para-phenylenediamine,2-β-hydroxyethyloxy-para-phenylenediamine,2-β-acetylaminoethyloxy-para-phenylenediamine,N-(β-methoxyethyl)-para-phenylenediamine, 4-aminophenylpyrrolidine,2-thienyl-para-phenylenediamine, 2-β-hydroxyethylamino-5-aminotolueneand 3-hydroxy-1-(4′-aminophenyl)pyrrolidine, and the addition saltsthereof with an acid.

Among the para-phenylenediamines mentioned above, para-phenylenediamine,para-toluylenediamine, 2-isopropyl-para-phenylenediamine,2-β-hydroxyethyl-para-phenylenediamine,2-β-hydroxyethyloxy-para-phenylenediamine,2,6-dimethyl-para-phenylenediamine, 2,6-diethyl-para-phenylenediamine,2,3-dimethyl-para-phenylenediamine,N,N-bis(β-hydroxyethyl)-para-phenylenediamine,2-chloro-para-phenylenediamine,2-β-acetylaminoethyloxy-para-phenylenediamine and2-methoxymethyl-para-phenylenediamine, and the addition salts thereofwith an acid, are particularly preferred.

Among the bis(phenyl)alkylenediamines, examples that may be mentionedincludeN,N′-bis(β-hydroxyethyl)-N,N′-bis(4′-aminophenyl)-1,3-diaminopropanol,N,N′-bis(o-hydroxyethyl)-N,N′-bis(4′-aminophenyl)ethylenediamine,N,N′-bis(4-aminophenyl)tetramethylenediamine,N,N′-bis(J-hydroxyethyl)-N,N′-bis(4-aminophenyl)tetramethylenediamine,N,N′-bis(4-methylaminophenyl)tetramethylenediamine,N,N′-bis(ethyl)-N,N′-bis(4′-amino-3′-methylphenyl)ethylenediamine and1,8-bis(2,5-diaminophenoxy)-3,6-dioxaoctane, and the addition saltsthereof.

Among the para-aminophenols, examples that may be mentioned includepara-aminophenol, 4-amino-3-methylphenol, 4-amino-3-fluorophenol,4-amino-3-chlorophenol, 4-amino-3-hydroxymethylphenol,4-amino-2-methylphenol, 4-amino-2-hydroxymethylphenol,4-amino-2-methoxymethylphenol, 4-amino-2-aminomethylphenol,4-amino-2-(β-hydroxyethylaminomethyl)phenol and 4-amino-2-fluorophenol,and the addition salts thereof with an acid.

Among the ortho-aminophenols, examples that may be mentioned include2-aminophenol, 2-amino-5-methylphenol, 2-amino-6-methylphenol,5-acetamido-2-aminophenol, and the addition salts thereof.

Among the heterocyclic bases, it is possible in particular pyridinederivatives, pyrimidine derivatives and pyrazole derivatives.

Among the pyridine derivatives that may be mentioned are the compoundsdescribed, for example, in patents GB 1 026 978 and GB 1 153 196, forinstance 2,5-diaminopyridine, 2-(4-methoxyphenyl)amino 3-aminopyridineand 3,4-diaminopyridine, and the addition salts thereof.

Other pyridine oxidation bases that are useful in the present inventionare the 3-aminopyrazolo[1,5-a]pyridine oxidation bases or addition saltsthereof described, for example, in patent application FR 2 801 308.

Examples that may be mentioned include pyrazolo[1,5-a]pyrid-3-ylamine,2-acetylaminopyrazolo[1,5-a]pyrid-3-ylamine,2-(morpholin-4-yl)pyrazolo[1,5-a]pyrid-3-ylamine,3-aminopyrazolo[1,5-a]pyridine-2-carboxylic acid,2-methoxypyrazolo[1,5-a]pyrid-3-ylamine,(3-aminopyrazolo[1,5-a]pyrid-7-yl)methanol,2-(3-aminopyrazolo[1,5-a]pyrid-5-yl)ethanol,2-(3-aminopyrazolo[1,5-a]pyrid-7-yl)ethanol,(3-aminopyrazolo[1,5-a]pyrid-2-yl)methanol,3,6-diaminopyrazolo[1,5-a]pyridine, 3,4-diaminopyrazolo[1,5-a]pyridine,pyrazolo[1,5-a]pyridine-3,7-diamine,7-(morpholin-4-yl)pyrazolo[1,5-a]pyrid-3-ylamine,pyrazolo[1,5-a]pyridine-3,5-diamine,5-(morpholin-4-yl)pyrazolo[1,5-a]pyrid-3-ylamine,2-[(3-aminopyrazolo[1,5-a]pyrid-5-yl)(2-hydroxyethyl)amino]ethanol,2-[(3-aminopyrazolo[1,5-a]pyrid-7-yl)(2-hydroxyethyl)amino]ethanol,3-aminopyrazolo[1,5-a]pyridin-5-ol, 3-aminopyrazolo[1,5-a]pyridin-4-ol,3-aminopyrazolo[1,5-a]pyridin-6-ol, 3-aminopyrazolo[1,5-a]pyridin-7-ol,2-β-hydroxyethoxy-3-aminopyrazolo[1,5-a]pyridine and2-(4-dimethylpiperazinium-1-yl)-3-aminopyrazolo[1,5-a]pyridine, and alsothe addition salts thereof.

More particularly, the oxidation bases according to the invention arechosen from 3-aminopyrazolo[1,5-a]pyridines preferably substituted inposition 2 with:

a) a (di)(C₁-C₆)(alkyl)amino group, the alkyl groups possibly beingsubstituted with one or more hydroxyl, amino or imidazolium groups;

b) a cationic or non-cationic 5- to 7-membered heterocycloalkyl groupcomprising from 1 to 3 heteroatoms, optionally substituted with one ormore (C₁-C₆)alkyl groups such as di(C₁-C₄)alkylpiperazinium;

c) a (C₁-C₆)alkoxy group optionally substituted with one or morehydroxyl groups, such as β-hydroxyalkoxy, and also the addition saltsthereof.

Among the pyrimidine derivatives, mention may be made of the compoundsdescribed, for example, in patents DE 2359399, JP 88169571, JP 05-63124and EP 0770375 or patent application WO 96/15765, such as2,4,5,6-tetraaminopyrimidine, 4-hydroxy-2,5,6-triaminopyrimidine,2-hydroxy-4,5,6-triaminopyrimidine, 2,4-dihydroxy-5,6-diaminopyrimidine,2,5,6-triaminopyrimidine and the addition salts thereof, and thetautomeric forms thereof, when a tautomeric equilibrium exists.

Among the pyrazole derivatives, mention may be made of the compoundsdescribed in patents DE 3843892 and DE 4133957 and patent applicationsWO 94/08969, WO 94/08970, FR-A-2 733 749 and DE 195 43 988, for instance4,5-diamino-1-methylpyrazole, 4,5-diamino-1-(β-hydroxyethyl)pyrazole,3,4-diaminopyrazole, 4,5-diamino-1-(4′-chlorobenzyl)pyrazole,4,5-diamino-1,3-dimethylpyrazole, 4,5-diamino-3-methyl-1-phenylpyrazole,4,5-diamino-1-methyl-3-phenylpyrazole,4-amino-1,3-dimethyl-5-hydrazinopyrazole,1-benzyl-4,5-diamino-3-methylpyrazole,4,5-diamino-3-tert-butyl-1-methylpyrazole,4,5-diamino-1-tert-butyl-3-methylpyrazole,4,5-diamino-1-(O-hydroxyethyl)-3-methylpyrazole,4,5-diamino-1-ethyl-3-methylpyrazole,4,5-diamino-1-ethyl-3-(4′-methoxyphenyl)pyrazole,4,5-diamino-1-ethyl-3-hydroxymethylpyrazole,4,5-diamino-3-hydroxymethyl-1-methylpyrazole,4,5-diamino-3-hydroxymethyl-1-isopropylpyrazole,4,5-diamino-3-methyl-1-isopropylpyrazole,4-amino-5-(2′-aminoethyl)amino-1,3-dimethylpyrazole,3,4,5-triaminopyrazole, 1-methyl-3,4,5-triaminopyrazole,3,5-diamino-1-methyl-4-methylaminopyrazole and3,5-diamino-4-(β-hydroxyethyl)amino-1-methylpyrazole, and the additionsalts thereof. Preferably, the heterocyclic oxidation bases of theinvention are chosen from 4,5-diaminopyrazoles such as4,5-diamino-1-(β-hydroxyethyl)pyrazole. Use may also be made of4,5-diamino-1-(β-methoxyethyl)pyrazole.

Use will preferably be made of a 4,5-diaminopyrazole and even morepreferentially of 4,5-diamino-1-(β-hydroxyethyl)pyrazole and/or a saltthereof.

Pyrazole derivatives that may also be mentioned includediamino-N,N-dihydropyrazolopyrazolones and notably those described inpatent application FR-A-2 886 136, such as the following compounds andthe addition salts thereof.2,3-diamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one,2-amino-3-ethylamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one,2-amino-3-isopropylamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one,2-amino-3-(pyrrolidin-1-yl)-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one,4,5-diamino-1,2-dimethyl-1,2-dihydropyrazol-3-one,4,5-diamino-1,2-diethyl-1,2-dihydropyrazol-3-one,4,5-diamino-1,2-di(2-hydroxyethyl)-1,2-dihydropyrazol-3-one,2-amino-3-(2-hydroxyethyl)amino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one,2-amino-3-dimethylamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one,2,3-diamino-5,6,7,8-tetrahydro-1H,6H-pyridazino[1,2-a]pyrazol-1-one,4-amino-1,2-diethyl-5-(pyrrolidin-1-yl)-1,2-dihydropyrazol-3-one,4-amino-5-(3-dimethylaminopyrrolidin-1-yl)-1,2-diethyl-1,2-dihydropyrazol-3-one,2,3-diamino-6-hydroxy-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one.

Use will preferably be made of2,3-diamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one and/or a saltthereof.

As heterocyclic bases, use will preferentially be made of4,5-diamino-1-(β-hydroxyethyl)pyrazole and/or2,3-diamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one and/or a saltthereof.

The oxidation base(s) used in the context of the invention are generallypresent in an amount ranging from 0.001% to 10% by weight approximately,and preferably ranging from 0.005% to 5%, relative to the total weightof the dye composition.

The additional couplers that are conventionally used for the dyeing ofkeratin fibers are preferably chosen from meta-phenylenediamines,meta-aminophenols, meta-diphenols, naphthalene-based couplers andheterocyclic couplers, and also the addition salts thereof.

Examples that may be mentioned include 1,3-dihydroxybenzene,1,3-dihydroxy-2-methylbenzene, 4-chloro-1,3-dihydroxybenzene,1-hydroxy-3-aminobenzene, 2-methyl-5-aminophenol,3-amino-2-chloro-6-methylphenol, 2-methyl-5-hydroxyethylaminophenol,2,4-diamino-1-(β-hydroxyethyloxy)benzene,2-amino-4-(β-hydroxyethylamino)-1-methoxybenzene, 1,3-diaminobenzene,1,3-bis(2,4-diaminophenoxy)propane, 3-ureidoaniline,3-ureido-1-dimethylaminobenzene, sesamol, thymol,1-β-hydroxyethylamino-3,4-methylenedioxybenzene, α-naphthol,2-methyl-1-naphthol, 6-hydroxyindole, 4-hydroxyindole,4-hydroxy-N-methylindole, 2-amino-3-hydroxypyridine,6-hydroxybenzomorpholine, 3,5-diamino-2,6-dimethoxypyridine,1-N-(β-hydroxyethyl)amino-3,4-methylenedioxybenzene,2,6-bis(β-hydroxyethylamino)toluene, 6-hydroxyindoline,2,6-dihydroxy-4-methylpyridine, 1-H-3-methylpyrazol-5-one,1-phenyl-3-methylpyrazol-5-one,2,6-dimethylpyrazolo[1,5-b]-1,2,4-triazole,2,6-dimethyl[3,2-c]-1,2,4-triazole and6-methylpyrazolo[1,5-a]benzimidazole, the addition salts thereof with anacid, and mixtures thereof.

In general, the addition salts of the oxidation bases and couplers thatmay be used in the context of the invention are notably chosen from theaddition salts with an acid, such as hydrochlorides, hydrobromides,sulfates, citrates, succinates, tartrates, lactates, tosylates,benzenesulfonates, phosphates and acetates.

In the context of the present invention, when they are present, thecoupler(s) are generally present in a total amount ranging from 0.001%to 10% by weight approximately relative to the total weight of the dyecomposition, and preferably ranging from 0.005% to 5% by weight relativeto the total weight of the dye composition.

Preferably, the total content of oxidation dyes in the compositionaccording to the invention is between 0.001% and 20% by weight,preferably between 0.001% and 10% by weight, preferably between 0.01%and 5% by weight, relative to the weight of the composition.

According to a particular embodiment, the composition comprises at leastone oxidation base and at least one coupler.

Scleroglucan Gums

According to the invention, composition (A) comprises one or morescleroglucan gums in a total content of greater than or equal to 0.5% byweight relative to the weight of the composition.

Scleroglucan gums are polysaccharides of microbial origin produced by afungus of Sclerotium type, in particular Sclerotium rolfsii. They arepolysaccharides constituted solely of glucose units.

Scleroglucan gums may or may not be modified. Preferably, thescleroglucan gums used in the present invention are unmodified.

Examples of scleroglucan gums that may be used in the present inventionare, in a nonlimiting manner, the products sold under the name ActigumCS, in particular Actigum CS 11, by the company Sanofi Bio Industriesand under the name Amigum or Amigel by the company Alban MillerInternational.

Other scleroglucan gums, such as the gum treated with glyoxal describedin French patent application No. 2 633 940, may also be used.

The scleroglucan gum(s) that may be used according to the inventionpreferably represent a total content ranging from 0.5% to 10% by weight,more preferentially from 0.5% to 5% by weight, even more preferentiallyfrom 0.5% to 3% by weight, better still from 0.5% to 2% by weight andeven more preferentially from 0.7% to 1.5% by weight, relative to thetotal weight of composition (A).

According to one embodiment of the invention, the oxidizing composition(B) comprises one or more scleroglucan gums, preferably in a totalcontent of greater than or equal to 0.5% by weight relative to theweight of the composition.

Preferably, according to this embodiment, the scleroglucan gum(s) thatmay be used according to the invention preferably represent from 0.5% to10% by weight, more preferentially from 0.5% to 5% by weight, even morepreferentially from 0.5% to 3% by weight, even more preferentially andeven more preferentially from 0.5% to 2%, even from 0.7% to 2% byweight, relative to the total weight of the oxidizing composition (B).

Alkaline Agents

The composition according to the invention comprises one or more mineralalkaline agents and one or more organic alkaline agents chosen fromalkanolamine(s).

The “alkaline agents” may equivalently be referred to as “basifyingagents”.

The term “mineral alkaline agent” (also known as an inorganic alkalineagent) means an alkaline agent which is not organic.

The mineral alkaline agent(s) are preferably chosen from aqueousammonia, also known as ammonium hydroxide (or ammonia precursors such asammonium salts, for example ammonium halides and in particular ammoniumchloride), alkali metal or alkaline-earth metal silicates, phosphates,carbonates or bicarbonates, such as alkali metal or alkaline-earth metalmetasilicates, sodium or potassium carbonate or bicarbonate, sodium orpotassium hydroxide, or mixtures thereof.

Preferably, the mineral alkaline agent(s) are chosen from aqueousammonia (or ammonia precursors such as ammonium salts, for exampleammonium halides and in particular ammonium chloride) and/or alkalimetal or alkaline-earth metal metasilicates.

Preferably, the mineral alkaline agent(s) are present in a total contentranging from 0.1% to 10% by weight, more preferentially from 0.5% to 8%by weight and better still from 1% to 7% by weight, relative to thetotal weight of the composition.

When the composition comprises aqueous ammonia (ammonium hydroxide), itscontent preferably ranges from 0.1% to 10% by weight, morepreferentially from 0.5% to 8% by weight and better still from 1% to 6%by weight, relative to the total weight of the composition.

The composition according to the invention also comprises one or moreorganic alkaline agents chosen from alkanolamines.

The term “alkanolamine” means an organic amine comprising a primary,secondary or tertiary amine function, and one or more linear or branchedC₁ to C₈ alkyl groups bearing one or more hydroxyl radicals.

Preferably, the organic amines chosen from alkanolamines such asmonoalkanolamines, dialkanolamines or trialkanolamines comprising one tothree identical or different C₁ to C₄ hydroxyalkyl radicals.

Preferably, the alkanolamines are preferably chosen frommonoethanolamine (MEA), diethanolamine, triethanolamine,monoisopropanolamine, diisopropanolamine, N,N-dimethylethanolamine,2-amino-2-methyl-1-propanol, triisopropanolamine,2-amino-2-methyl-1,3-propanediol, 3-amino-1,2-propanediol,3-dimethylamino-1,2-propanediol and tris(hydroxymethyl)aminomethane, andmixtures thereof, preferably monoethanolamine (MEA).

Preferably, the alkanolamine(s) is/are present in a total contentpreferably ranging from 0.5% to 10% by weight, more preferentially from1% to 9% by weight, better still from 2% to 8% by weight relative to thetotal weight of the composition.

Preferably, the weight ratio of the total content of mineral alkalineagents relative to the total content of alkanolamines ranges from 0.05to 10, more preferentially from 0.1 to 5 and better still from 0.15 to3.

Particularly preferably, the composition according to the inventioncomprises aqueous ammonia (ammonium hydroxide) and one or morealkanolamines, preferably monoethanolamine.

Additional Alkaline Agents

The composition according to the invention may also comprise one or moreadditional alkaline agents other than mineral alkaline agents andalkanolamines.

Preferably, the additional alkaline agent(s) may be chosen from organicalkaline agents other than alkanolamines

By way of example, mention may be made of amino acids.

By way of amino acids which can be used in the composition according tothe present invention, mention may especially be made of aspartic acid,glutamic acid, alanine, arginine, ornithine, citrulline, asparagine,camitine, cysteine, glutamine, glycine, histidine, lysine, isoleucine,leucine, methionine, N-phenylalanine, proline, serine, taurine,threonine, tryptophan, tyrosine and valine.

Advantageously, the additional alkaline agents are chosen from basicamino acids, notably comprising an additional amine function optionallyincluded in a ring or in a ureido function.

Preferably, the additional alkaline agent(s) are chosen from aminoacids, preferably basic amino acids, preferably arginine.

Preferably, when the composition according to the invention contains oneor more additional alkaline agents other than mineral alkaline agentsand alkanolamines, they are present in a total content ranging from 0.5%to 10% by weight, more preferentially from 1% to 8% by weight and betterstill from 2% to 7% by weight, relative to the total weight of thecomposition.

Associative Polymer

The composition according to the invention may also comprise one or moreassociative polymers. The associative polymers according to theinvention are polymers comprising at least one C₈-C₃₀ fatty chain and ofwhich the molecules are capable, in the formulation medium, ofassociating with each other or with molecules of other compounds.

Preferably, the fatty chain includes from 10 to 30 carbon atoms.

A particular case of associative polymers is amphiphilic polymers, i.e.polymers including one or more hydrophilic parts which make themwater-soluble and one or more hydrophobic zones (comprising at least onefatty chain) via which the polymers interact and assemble with eachother or with other molecules.

The associative polymers that may be used in the composition accordingto the invention may be chosen from nonionic, anionic, cationic andamphoteric associative polymers, and mixtures thereof.

According to one embodiment of the invention, the associative polymer(s)are chosen from nonionic associative polymers.

The nonionic associative polymers are preferably chosen from:

-   -   (1) celluloses modified with groups including at least one    -   fatty chain;    -   preferably from:        -   hydroxyethylcelluloses modified with groups including at            least one fatty chain, such as alkyl, arylalkyl or alkylaryl            groups, or mixtures thereof, and in which the alkyl groups            are preferably C₅-C₂₂, preferably such as the            cetylhydroxyethylcellulose sold notably under the reference            Natrosol Plus Grade 330 CS (C₁₆ alkyls) sold by the company            Ashland, or the product Polysurf 67CS sold by the company            Ashland,        -   hydroxyethylcelluloses modified with polyalkylene glycol            ether alkyl phenol groups, such as the product Amercell            Polymer HM-1500 (polyethylene glycol (15) ether of nonyl            phenol) sold by the company Amerchol,    -   and mixtures thereof.    -   (2) hydroxypropyl guars modified with groups including at least        one fatty chain, such as the product Esaflor HM 22 (C₂₂ alkyl        chain) sold by the company Lamberti, and the products RE210-18        (C₁₄ alkyl chain) and RE205-1 (C₂ alkyl chain) sold by the        company Rhodia.    -   (3) copolymers of vinylpyrrolidone and of fatty-chain        hydrophobic monomers:    -   mention may be made, by way of example, of:        -   the products Antaron V216 or Ganex V216            (vinylpyrrolidone/hexadecene copolymer) sold by the company            I.S.P.        -   the products Antaron V220 or Ganex V220            (vinylpyrrolidone/eicosene copolymer) sold by the company            I.S.P.    -   (4) copolymers of C₁-C₆-alkyl methacrylates or acrylates and of        amphiphilic monomers comprising at least one fatty chain, for        instance the oxyethylenated methyl acrylate/stearyl acrylate        copolymer sold by the company Goldschmidt under the name Antil        208.    -   (5) copolymers of hydrophilic methacrylates or acrylates and of        hydrophobic monomers comprising at least one fatty chain, for        instance the polyethylene glycol methacrylate/lauryl        methacrylate copolymer.    -   (6) polyurethane polyethers comprising in their chain both        hydrophilic blocks usually of polyoxyethylenated nature and        hydrophobic blocks, which may be aliphatic sequences alone        and/or cycloaliphatic and/or aromatic sequences.    -   (7) polymers with an aminoplast ether backbone containing at        least one fatty chain, such as the Pure Thix compounds sold by        the company Sud-Chemie.    -   (8) and mixtures thereof.

Particularly preferably, the associative polymer(s) are nonionicassociative polymer(s), and preferably chosen from celluloses modifiedwith groups including at least one fatty chain.

Preferably, the nonionic associative polymer(s) are chosen fromhydroxyethylcelluloses modified with groups including at least one fattychain, such as alkyl, arylalkyl or alkylaryl groups, or mixturesthereof, and in which the alkyl groups are preferably C₈-C₂₂, andhydroxyethylcelluloses modified with polyalkylene glycol ether alkylphenol groups, and mixtures thereof, preferablycetylhydroxyethylcellulose.

Cationic polymers According to an advantageous embodiment of theinvention, the composition comprises one or more cationic polymers.

As cationic polymers that may be used in the compositions according tothe invention, mention may be made in particular of:

-   -   (1) cyclopolymers of alkyldiallylamine or of        dialkyldiallylammonium, such as the homopolymers or copolymers        including, as main constituent of the chain, units corresponding        to formula (I) or (II):

-   -   in which        -   k and t are equal to 0 or 1, the sum k+t being equal to 1;        -   R12 denotes a hydrogen atom or a methyl radical;        -   R10 and R11, independently of each other, denote a C1-C6            alkyl group, a C1-C5 hydroxyalkyl group, a C1-C4 amidoalkyl            group; or alternatively R10 and R11 may denote, together            with the nitrogen atom to which they are attached, a            heterocyclic group such as piperidyl or morpholinyl; R10 and            R11, independently of each other, preferably denote a C1-C4            alkyl group;        -   Y⁻ is an anion such as bromide, chloride, acetate, borate,            citrate, tartrate, bisulfate, bisulfite, sulfate or            phosphate.

Mention may be made more particularly of the dimethyldiallylammoniumsalt (for example chloride) homopolymer, for example sold under the nameMerquat 100 by the company Nalco. Preferably, the polymers of family (1)are chosen from dialkyldiallylammonium homopolymers.

-   -   (2) quaternary diammonium polymers comprising repeating units of        formula:

-   -   in which:        -   R13, R14, R15 and R16, which may be identical or different,            represent aliphatic, alicyclic or arylaliphatic radicals            comprising from 1 to 20 carbon atoms or C₁-C₁₂ hydroxyalkyl            aliphatic radicals,    -   or else R13, R14, R15 and R16, together or separately, form,        with the nitrogen atoms to which they are attached, heterocycles        optionally comprising a second non-nitrogen heteroatom;    -   or else R13, R14, R15 and R16 represent a linear or branched        C₁-C₆ alkyl radical substituted with a nitrile, ester, acyl,        amide or —CO—O—R17-D or —CO—NH—R17-D group, where R17 is an        alkylene and D is a quaternary ammonium group;        -   A1 and B1 represent linear or branched, saturated or            unsaturated, divalent polymethylene groups comprising from 2            to 20 carbon atoms, which may contain, linked to or            intercalated in the main chain, one or more aromatic rings            or one or more oxygen or sulfur atoms or sulfoxide, sulfone,            disulfide, amino, alkylamino, hydroxyl, quaternary ammonium,            ureido, amide or ester groups, and        -   X⁻ denotes an anion derived from a mineral or organic acid;    -   it being understood that A1, R13 and R15 can form, with the two        nitrogen atoms to which they are attached, a piperazine ring;    -   in addition, if A1 denotes a linear or branched, saturated or        unsaturated alkylene or hydroxyalkylene radical, B1 may also        denote a group (CH2)n-CO-D-OC—(CH2)p- with n and p, which may be        identical or different, being integers ranging from 2 to 20, and        D denoting:        -   a) a glycol residue of formula —O—Z—O—, in which Z denotes a            linear or branched hydrocarbon-based radical or a group            corresponding to one of the following formulae:            —(CH2CH2O)x-CH2CH2- and —[CH2CH(CH3)O]y-CH2CH(CH3)-, in            which x and y denote an integer from 1 to 4, representing a            defined and unique degree of polymerization or any number            from 1 to 4 representing an average degree of            polymerization;        -   b) a bis-secondary diamine residue, such as a piperazine            derivative;        -   c) a bis-primary diamine residue of formula —NH—Y—NH—, in            which Y denotes a linear or branched hydrocarbon-based            radical, or else the divalent radical —CH2-CH2-S—S—CH2-CH2-;        -   d) a ureylene group of formula —NH—CO—NH—.

Preferably, X− is an anion, such as chloride or bromide. These polymershave a number-average molar mass (Mn) generally of between 1000 and 100000.

Mention may be made more particularly of cationic polymers that areconstituted of repeating units corresponding to the formula:

in which R1, R2, R3 and R4, which may be identical or different, denotean alkyl or hydroxyalkyl radical containing from 1 to 4 carbon atoms, nand p are integers ranging from 2 to 20, and X— is an anion derived froma mineral or organic acid.

A particularly preferred compound of formula (IV) is the one for whichR1, R2, R3 and R4 represent a methyl radical and n=3, p=6 and X=Cl,known as Hexadimethrine chloride according to the INCI (CTFA)nomenclature.

Preferably, the cationic polymer(s) are chosen fromdialkyldiallylammonium homopolymers, in particular homopolymers ofdimethyldiallylammonium salts, polymers constituted of repeating unitscorresponding to formula (IV) above, in particularpoly(dimethyliminio)-1,3-propanediyl(dimethyliminio)-1,6-hexanediyldichloride, the INCI name of which is hexadimethrine chloride, andmixtures thereof.

When they are present, the total content of cationic polymers in thecomposition according to the present invention may range from 0.01% to10% by weight relative to the weight of the composition, preferably from0.1% to 7% relative to the weight of the composition, even moreadvantageously from 0.5% to 5% by weight and better still from 0.5% to3% by weight relative to the weight of the composition.

Carboxylic Acids

The dye composition (A) according to the invention may advantageouslycomprise one or more carboxylic acids, and/or addition salts thereofand/or solvates thereof, said carboxylic acid(s) being aliphaticcompounds, comprising from 2 to 10 carbon atoms and preferablycomprising at least two carboxylic groups.

Preferably, they are chosen from aliphatic dicarboxylic and/ortricarboxylic acids comprising from 2 to 10 carbon atoms, preferablyfrom 2 to 8 carbon atoms, better still from 2 to 6 carbon atoms.

Preferably, the carboxylic acids may be chosen from oxalic acid, malonicacid, malic acid, glutaric acid, citraconic acid, citric acid, maleicacid, succinic acid, adipic acid, tartaric acid, fumaric acid, andmixtures thereof.

Preferably, the carboxylic acid(s) comprise at least two carboxylicgroups and are chosen from malonic acid, citric acid, maleic acid,glutaric acid, succinic acid, and mixtures thereof; preferably chosenfrom malonic acid, citric acid, maleic acid, and mixtures thereof.

More particularly preferably, the carboxylic acid is citric acid.

The total content of carboxylic acid(s) and/or addition salts thereofand/or solvates thereof preferably ranges from 0.1% to 20% by weight,relative to the total weight of composition (A).

Preferably, the total content of carboxylic acid(s) ranges from 0.1% to20%, preferentially from 0.5% to 10% by weight, better still from 1% to7% by weight, relative to the total weight of the composition, and evenbetter still from 2% to 5% by weight relative to the total weight ofcomposition (A).

Surfactants

Preferably, the composition according to the present invention alsocomprises one or more surfactants, which may be chosen from anionicsurfactants, amphoteric or zwitterionic surfactants, nonionicsurfactants and cationic surfactants, and mixtures thereof, preferablyfrom nonionic surfactants, cationic surfactants, and mixtures thereof.

The term “anionic surfactant” means a surfactant including, as ionic orionizable groups, only anionic groups. These anionic groups arepreferably chosen from the following groups: CO₂H, CO₂ ⁻, S₃H, SO₃ ⁻,OSO₃H, OSO₃ ⁻, H₂PO₃, HPO₃ ⁻, PO₃ ²⁻, H₂PO₂, HPO₂ ⁻, PO₂ ²⁻POH and PO⁻.

According to one embodiment, the composition according to the inventioncomprises one or more nonionic surfactants.

The nonionic surfactants that may be used according to the invention maybe chosen from:

-   -   alcohols, α-diols and (C₁-C₂₀)alkylphenols, these compounds        being polyethoxylated and/or polypropoxylated and/or        polyglycerolated, the number of ethylene oxide and/or propylene        oxide groups possibly ranging from 1 to 100, and the number of        glycerol groups possibly ranging from 2 to 30; or else these        compounds comprising at least one fatty chain including from 8        to 40 carbon atoms and notably from 16 to 30 carbon atoms; in        particular, oxyethylenated alcohols comprising at least one        saturated or unsaturated, linear or branched C₈ to C₄₀ alkyl        chain, comprising from 1 to 100 mol of ethylene oxide,        preferably from 2 to 50 and more particularly from 2 to 40 mol        of ethylene oxide and including one or two fatty chains;    -   condensates of ethylene oxide and propylene oxide with fatty        alcohols;    -   polyethoxylated fatty amides preferably containing from 2 to 30        ethylene oxide units, polyglycerolated fatty amides including on        average from 1 to 5 and in particular from 1.5 to 4 glycerol        groups;    -   ethoxylated fatty acid esters of sorbitan, preferably containing        from 2 to 40 ethylene oxide units;    -   fatty acid esters of sucrose;    -   polyoxyalkylenated, preferably polyoxyethylenated, fatty acid        esters containing from 2 to 150 mol of ethylene oxide, including        oxyethylenated plant oils;    -   N—(C₆-C₂₄ alkyl)glucamine derivatives;    -   amine oxides such as (C₁₀-C₁₄ alkyl)amine oxides or N—(C₁₀-C₁₄        acyl)aminopropylmorpholineoxides;    -   and mixtures thereof.

Among the commercial products, mention may be made of the products soldby the company Cognis under the names Plantaren® (600 CS/U, 1200 and2000) or Plantacare® (818, 1200 and 2000); the products sold by thecompany SEPPIC under the names Oramix CG 110 and Oramix® NS 10; theproducts sold by the company BASF under the name Lutensol GD 70, or theproducts sold by the company Chem Y under the name AG10 LK.

Preferably, use is made of C₈/C₁₆-alkyl (poly)glycosides 1,4, notably asan aqueous 53% solution, such as those sold by Cognis under thereference Plantacare® 818 UP.

Preferentially, the nonionic surfactants are chosen from:

-   -   saturated or unsaturated, linear or branched, oxyethylenated        fatty alcohols including at least one C₈ to C₄₀, notably C₅-C₂₀        and better still C₁₀-C₁₈ alkyl chain, and comprising from 1 to        100 mol of ethylene oxide, preferably from 2 to 50, more        particularly from 2 to 40 mol, or even from 3 to 20 mol of        ethylene oxide; and        -   (C₆-C₂₄ alkyl)(poly)glycosides, and more particularly            (C₈-C₁₈ alkyl)(poly)glycosides;    -   and mixtures thereof;

and even more preferentially from (C₆-C₂₄ alkyl)(poly)glycosides,preferentially (C₈-C₁₈ alkyl)(poly)glycosides.

According to a preferred embodiment of the invention, the compositionaccording to the invention comprises one or more nonionic surfactantspreferably chosen from alkyl(poly)glycosides. Preferably, thecomposition according to the invention comprises one or more surfactantschosen from (C₆-C₂₄ alkyl)(poly)glycosides, more preferentially from(C₈-C₁₈ alkyl)(poly)glycosides, preferably from C₈/C₁₆-(poly)glucosides,preferably of 1,4 type, and preferably chosen from decyl glucosidesand/or caprylyl/capryl glucosides and/or cocoyl glucosides.

According to a first embodiment, the surfactant(s) are nonionic,preferably chosen from (C₆-C₂₄ alkyl)polyglycosides.

According to a preferred embodiment, the composition according to theinvention comprises at least one or more cationic surfactants.Preferably, the surfactant(s) are chosen from optionallypolyoxyalkylentated primary, secondary or tertiary fatty amine salts,quaternary ammonium salts, and mixtures thereof.

Preferably, the cationic surfactant(s) are chosen fromcetyltrimethylammonium,behenyltrimethylammoniumanddipalmitoylethylhydroxyethylmethylammoniumsalts,and mixtures thereof, and more particularly behenyltrimethylammoniumchloride, cetyltrimethylammonium chloride, anddipalmitoylethylhydroxyethylammonium methosulfate, and mixtures thereof.

The composition preferably comprises one or more cationic surfactants ina total content ranging from 0.01% to 20% by weight, more preferentiallyfrom 0.05% to 10% by weight and better still from 0.1% to 5% by weight,relative to the total weight of the composition.

The composition preferably comprises one or more nonionic surfactants ina total content ranging from 0.01% to 10% by weight, more preferentiallyfrom 0.05% to 5% by weight and better still from 0.1% to 3% by weight,relative to the total weight of the composition.

The composition preferably comprises one or more cationic surfactants ina total content ranging from 0.01% to 10% by weight, more preferentiallyfrom 0.05% to 5% by weight and better still from 0.1% to 3% by weight,relative to the total weight of the composition.

Preferably, the surfactant(s) are chosen from cationic or nonionicsurfactants, and mixtures thereof, preferably cationic surfactants.Preferably, the composition according to the invention comprises atleast one or more cationic surfactants and one or more nonionicsurfactants.

Medium

The cosmetically acceptable medium that is suitable for dyeing keratinfibers, also known as a dye “support”, generally comprises water or amixture of water and of at least one organic solvent to dissolve thecompounds that are not sufficiently water-soluble.

More particularly, the organic solvents are chosen from linear orbranched and preferably saturated monoalcohols or diols, comprising from2 to 10 carbon atoms, such as ethyl alcohol, isopropyl alcohol, hexyleneglycol (2-methyl-2,4-pentanediol), neopentyl glycol and3-methyl-1,5-pentanediol; glycerol; aromatic alcohols such as benzylalcohol and phenylethyl alcohol; glycols or glycol ethers, for instanceethylene glycol monomethyl, monoethyl and monobutyl ethers, propyleneglycol or ethers thereof, for instance propylene glycol monomethylether, butylene glycol or dipropylene glycol; and also diethylene glycolalkyl ethers, notably of C₁-C₄, for instance diethylene glycol monoethylether or monobutyl ether, alone or as a mixture.

The common solvents described above, if they are present, usuallyrepresent from 1% to 40% by weight and more preferentially from 5% to30% by weight, relative to the total weight of the composition.

The compositions used according to the invention generally comprisewater or a mixture of water and of one or more organic solvents or amixture of organic solvents.

The composition according to the invention preferably comprises water.

Preferably, the water content ranges from 5% to 95% by weight, morepreferentially from 10% to 90% by weight and better still from 20% to80% by weight, relative to the total weight of the composition.

pH of the Medium

The pH of the composition according to the invention generally rangesfrom 1 to 12. Preferably, the pH of composition (A) according to theinvention is basic.

For the purposes of the present invention, the term “basic pH” means apH above 7.

Preferably, the pH of composition (A) according to the invention isabove 8, and particularly ranges from 8.5 to 12.

Preferably, the pH of the composition is between 9 and 12.

pH Adjuster

The cosmetically acceptable medium may be adjusted to the desired valueby means of acidifying or basifying agents usually used in the dyeing ofkeratin fibers, or alternatively using standard buffer systems.

Among the acidifying agents, examples that may be mentioned includemineral acids, for instance hydrochloric acid, (ortho)phosphoric acid,boric acid, nitric acid or sulfuric acid, or organic acids, for instancecompounds comprising at least one sulfonic acid function, a phosphonicacid function or a phosphoric acid function, or compounds bearing acarboxylic acid function such as those mentioned previously.

Other Additives

The composition according to the invention may also contain variousadditives conventionally used in hair dye compositions, such as mineralthickeners, and in particular fillers such as clays or talc; organicthickeners other than scleroglucan gums; antioxidants; penetrants;sequestrants; fragrances; dispersants; film-forming agents; ceramides;preserving agents; opacifiers; fatty substances and/or additional directdyes.

The above additives are generally present in an amount for each of themof between 0.01% and 40% by weight relative to the weight of thecomposition, and preferably between 0.05% and 20% by weight relative tothe weight of the composition.

Needless to say, a person skilled in the art will take care to selectthis or these additional compound(s) such that the advantageousproperties intrinsically associated with the composition(s) that areuseful in the dyeing process in accordance with the invention are not,or are not substantially, adversely affected by the envisionedaddition(s).

Dyeing Process

Another subject of the invention is a dyeing process using a dyecomposition (A) as described previously, with an oxidizing composition(B) comprising one or more chemical oxidizing agents.

In particular, the invention is also directed toward a process fordyeing keratin fibers, and in particular human keratin fibers such asthe hair, involving the application to the fibers of a dye composition(A) as defined previously, and of an oxidizing composition (B)comprising at least one chemical oxidizing agent, preferably chosen fromhydrogen peroxide and/or one or more systems for generating hydrogenperoxide, preferably from hydrogen peroxide, the oxidizing composition(B) being mixed with the dye composition (A) just before use (i.e.application to said fibers) (extemporaneously) or at the time of use, oralternatively the dye composition and oxidizing composition beingapplied sequentially without intermediate rinsing.

Oxidizing Agent:

The oxidizing composition (B) used with the dye composition (A)according to the invention contains one or more chemical oxidizingagents, preferably chosen from hydrogen peroxide and/or one or moresystems for generating hydrogen peroxide.

The term “chemical oxidizing agent” means an oxidizing agent other thanatmospheric oxygen.

Preferably, the chemical oxidizing agent(s) are chosen from hydrogenperoxide, peroxygenated salts, for instance persulfates, perborates,peracids and precursors thereof, percarbonates of alkali metals oralkaline-earth metals, such as sodium carbonate peroxide, also known assodium percarbonate and peracids and precursors thereof; alkali metalbromates or ferricyanides, solid hydrogen peroxide-generating chemicaloxidizing agents such as urea peroxide and polymer complexes that canrelease hydrogen peroxide, notably those comprising a heterocyclic vinylmonomer such as polyvinylpyrrolidone/H₂O₂ complexes, in particular inpowder form; oxidases that produce hydrogen peroxide in the presence ofa suitable substrate (for example glucose in the case of glucose oxidaseor uric acid with uricase).

Preferably, the chemical oxidizing agent(s) are chosen from hydrogenperoxide, urea peroxide, alkali metal bromates or ferricyanides,peroxygenated salts, and mixtures of these compounds.

Particularly preferably, the chemical oxidizing agent is hydrogenperoxide.

Preferably, the chemical oxidizing agent(s) represent from 0.05% to 40%by weight, preferably from 0.5% to 30% by weight, more preferentiallyfrom 1% to 20% by weight and better still from 1.5% to 15% by weightrelative to the total weight of the oxidizing composition (B).

Preferably, the oxidizing composition (B) according to the inventiondoes not contain any peroxygenated salts.

As indicated previously, according to one embodiment of the invention,the oxidizing composition (B) comprises one or more scleroglucan gums,preferably in a total content of greater than or equal to 0.5% by weightrelative to the weight of the composition.

Preferably, according to this embodiment, the scleroglucan gum(s) thatmay be used according to the invention preferably represent from 0.5% to10% by weight, more preferentially from 0.5% to 5% by weight, even morepreferentially from 0.5% to 3% by weight, even more preferentially andeven more preferentially from 0.7% to 2% by weight relative to the totalweight of the oxidizing composition (B).

The oxidizing composition (B) may also contain various additionalcompounds or various adjuvants conventionally used in compositions fordyeing the hair and notably as defined previously.

The oxidizing composition (B) is generally an aqueous composition. Forthe purposes of the invention, the term “aqueous composition” means acomposition comprising more than 20% by weight of water, preferably morethan 30% by weight of water and even more advantageously more than 40%by weight of water.

Preferably, the oxidizing composition (B) usually comprises water, whichgenerally represents from 10% to 98% by weight, preferably from 20% to96% by weight, preferably from 50% to 95% by weight, relative to thetotal weight of the composition.

This oxidizing composition (B) may also comprise one or morewater-soluble organic solvents as described previously. It may alsocomprise one or more acidifying agents.

Among the acidifying agents, examples that may be mentioned includemineral or organic acids, for instance hydrochloric acid,orthophosphoric acid, sulfuric acid, carboxylic acids, for instanceacetic acid, tartaric acid, citric acid or lactic acid, and sulfonicacids.

Usually, the pH of composition (B) is less than 7.

The pH of composition (B) of the invention is advantageously between 1and 7, preferably between 1 and 4 and more preferentially from 1.5 to3.5.

Finally, the oxidizing composition (B) is in various forms, for instancea solution, an emulsion or a gel.

Dyeing Process

The process of the invention may be performed by applying the dyecomposition (A) as defined previously and the oxidizing composition (B)successively and without intermediate rinsing, the order beingirrelevant.

According to another preferred variant, a ready-to-use compositionobtained by extemporaneous mixing, at the time of use, of the dyecomposition (A) as defined previously and of the oxidizing composition(B) is applied to wet or dry keratin fibers. According to thisembodiment, preferably, the weight ratio R of the amounts of (A)/(B)ranges from 0.1 to 10, preferably from 0.2 to 2 and better still from0.3 to 1.

In addition, independently of the variant used, the application of theready-to-use composition to the keratin materials (resulting either fromthe extemporaneous mixing of the dye composition (A) and the oxidizingcomposition (B) or from the partial or total successive applicationthereof) is left in place for a time generally from about 1 minute to 1hour and preferably from 5 minutes to 30 minutes.

The temperature during the process is conventionally between roomtemperature (between 15 and 25° C.) and 80° C. and preferably betweenroom temperature and 60° C.

After the treatment, the keratin materials are optionally rinsed withwater, optionally subjected to washing followed by rinsing with water,and are then dried or left to dry.

Preferably, the keratin fibers are human keratin fibers, preferablyhuman hair.

A subject of the invention is also a ready-to-use composition for dyeingkeratin fibers, in particular human keratin fibers such as the hair,obtained by extemporaneous mixing, at the time of use, of a composition(A) comprising:

-   -   one or more oxidation dyes;    -   one or more scleroglucan gums in a total amount of greater than        or equal to 0.5% by weight relative to the weight of the        composition;    -   one or more mineral alkaline agents; and    -   one or more organic alkaline agents chosen from alkanolamine(s);    -   and a composition (B) comprising    -   one or more chemical oxidizing agents.

The term “extemporaneous” notably means less than 30 minutes, preferablyless than 15 minutes, before application to the keratin fibers,preferably less than 5 minutes. In particular, the mixture is appliedimmediately after having been prepared.

According to a particular embodiment of the invention, the chemicaloxidizing agent(s) preferably represent a total content ranging from0.1% to 20% by weight, preferably from 0.5% to 15% by weight or evenmore preferentially from 1% to 10% by weight, relative to the totalweight of the ready-to-use composition.

Finally, the invention relates to a multi-compartment device comprising,in a first compartment, a dye composition (A) as described previously,and, in a second, an oxidizing composition (B) comprising one or moreoxidizing agents, these compositions having been described previously.

In particular, a subject of the invention is also a multi-compartmentdevice (or “kit”) allowing the implementation of the composition fordyeing keratin fibers, preferably comprising at least two compartments,a first compartment containing the dye composition (A) as definedpreviously, and the second compartment containing at least one oxidizingcomposition (B) comprising at least one chemical oxidizing agent,preferably chosen from hydrogen peroxide and/or one or more systems forgenerating hydrogen peroxide, preferably hydrogen peroxide, thecompositions in the compartments being intended to be mixed beforeapplication, to give the formulation after mixing; in particular, thekit may be an aerosol device.

The examples that follow serve to illustrate the invention without,however, being limiting in nature.

In particular, the dyeing of the keratin fibers obtained in theseexamples may advantageously be evaluated in the CIE L* a* b* system,using a Datacolor Spectraflash SF600X spectrocolorimeter.

In this L* a* b* system, the three parameters respectively denote theintensity of the color (L*), the green/red color axis (a*) and theblue/yellow color axis (b*). The higher the value of L*, the lighter thecolor. The higher the value of a*, the redder the color and the higherthe value of b*, the yellower the color.

The variation (or extent) of the dyeing between untreated locks of hairand locks of hair after treatment is defined by the parameter DE* and iscalculated according to the following equation:DE*=√{square root over ((L*−L _(o)*)²+(a*−a _(o)*)²+(b*−b _(o)*)²)}  (I)

In this equation, the parameters L*, a* and b* represent the valuesmeasured on locks of hair after dyeing and the parameters L₀*, a₀* andb₀* represent the values measured on untreated locks of hair. The higherthe value of DE*, the better the dyeing of the keratin fibers.

In the CIE L*, a*, b* system, the chromaticity is calculated accordingto the following equation:C*=√{square root over (a* ² +b* ²)}

The higher the value of C*, the more chromatic the coloring.

EXAMPLE 1

The following compositions were prepared from the following ingredientsin the following proportions indicated in grams of active substance:

Comparative Comparative Comparative composition C1 composition C2composition C3 Composition A1 not according to not according to notaccording to (according to the invention the invention the invention theinvention) Ammonium 2.47 2.47 2.47 2.47 hydroxide Ethanolamine 4 4 4 4EDTA 0.2 0.2 0.2 0.2 Sodium sulfite 0.5 0.5 0.5 0.5 Oxidation dyes 1.4011.401 1.401 1.401 Fragance qs qs qs qs Hexadimethrine 0.3 0.3 0.3 0.3chloride Polyquatemium-6 0.4 0.4 0.4 0.4 Cetylhydroxyethyl 0.2 0.2 0.20.2 cellulose Xanthan gum 1 — — — Algin — — 1 — Sclerotium gum — — — 1Hydroxypropylcellulose — 1 — — Water qs 100 qs 100 qs 100 qs 100Glycerol 10 10 10 10 Cetrimonium 0.25 0.25 0.25 0.25 chlorideCaprylyl/capryl 0.6 0.6 0.6 0.6 glucoside Ascorbic acid 0.4 0.4 0.4 0.4

Visual Evaluation of the Stability of the Compositions

The stability of the dye compositions was evaluated by observing thecompositions at T0 (immediately after preparation of the composition)and then after 2 months of storage at 45° C.

Composition C1 Composition C2 Composition C3 Composition A1 Observationat T0 Liquid texture Liquid texture Liquid texture Translucent gel atroom Non-homogeneous Non-homogeneous Non-homogeneous Homogeneoustemperature (phase separation) (phase separation) (phase separation) (nophase separation) (25° C.) Observation after Liquid texture Liquidtexture Liquid texture Translucent gel 2 months at 45° C.Non-homogeneous Non-homogeneous Non-homogeneous Homogeneous (phaseseparation) (phase separation) (phase separation) (no phase separation)

It is observed that composition A1 according to the invention ishomogeneous and forms a translucent gel at T0. After 2 months at 45° C.,composition A1 according to the invention is stable; it is homogeneousand translucent. Comparative compositions C1, C2 and C3 in which thescleroglucan gum has been replaced weight-for-weight with anotherthickener of polysaccharide type are not stable. Indeed, they are nothomogeneous; phase separation of these compositions is observed as earlyas T0.

EXAMPLE 2

The following compositions were prepared from the following ingredientsin the following proportions indicated in grams:

Comparative Composition A2 Composition C4 according to the not accordinginvention to the invention Ammonium hydroxide 2.47 2.47 Ethanolamine4.47 4.47 EDTA 0.2 0.2 Sodium Sulfite 0.5 0.5 TOLUENE-2,5-DIAMINE 0.40.4 2-METHYL-5- 0.264 0.264 HYDROXYETHYLAMINOPHENOL 4-AMINO-2- 1.3041.304 HYDROXYTOLUENE HYDROXYETHOXY 1.76 1.76 AMINOPYRAZOLOPYRIDINE HCLp-Aminophenol 0.128 0.128 Fragance qs qs Cetylhydroxyethylcellulose 0.20.4 Sclerotium gum 0.6 0.4 Water Qs 100 qs 100 Glycerol 10 10 Cocoylbetaine 0.15 0.15 Caprylyl/capryl glucoside 0.6 0.6 Ascorbic acid 0.40.4

Visual Evaluation of the Stability of the Compositions

The stability of the dye compositions was evaluated by observing thecompositions at T0 (immediately after preparation of the composition),then after 2 months of storage at room temperature (25° C.), and after 2months of storage at 45° C.

Composition A2 Comparative according to composition the invention C4Observation at T0 Homogeneous Homogeneous (immediately after (no phaseseparation) (no phase separation) preparation) Texture: smooth gelTexture: smooth gel Observation after Homogeneous Phase separation: 2months at 25° C. (no phase separation) gel with presence Texture: smoothgel of a liquid release Observation after Texture: smooth gel Phaseseparation: 2 months at 45° C. Homogeneous gel with presence (no phaseseparation) of a liquid release

It is observed that composition A2 according to the invention whichcomprises a content of scleroglucan gum of greater than or equal to 0.5by weight relative to the total weight of the composition is stable atroom temperature and at 45° C. for 2 months, unlike the comparativecomposition C4 which comprises a content of scleroglucan gum of 0.4% byweight relative to the weight of the composition. Compositions A2 and C4comprise the same total content of thickener(s) (0.8%). Comparativecomposition C4 is therefore not stable.

EXAMPLE 3

The following composition according to the invention was prepared fromthe following ingredients in the following proportions indicated ingrams:

Composition A3 According US INCI to the invention AMMONIUM HYDROXIDE2.47 ETHANOLAMINE 4.73 EDTA 0.2 SODIUM SULFITE 0.5 TOLUENE-2,5-DIAMINE0.16 4-AMINO-2-HYDROXYTOLUENE 0.92 5-AMINO-6-CHLORO-o-CRESOL 0.21-HYDROXYETHYL 4,5-DIAMINO 1.44 PYRAZOLE SULFATE p-AMINOPHENOL 0.12FRAGRANCE qs CETYL HYDROXYETHYLCELLULOSE 0.2 SCLEROTIUM GUM 1 WATER QS100 GLYCERIN 10 COCO-BETAINE 0.15 CETRIMONIUM CHLORIDE CAPRYLYL/CAPRYLGLUCOSIDE 0.6 ASCORBIC ACID 0.4

Visual Evaluation of the Stability of the Compositions

The stability of the dye composition was evaluated by observing thecomposition at T0 (immediately after preparation of the composition),then after 2 months of storage at room temperature (25° C.), and after 2months of storage at 45° C.

Composition A3 according to the invention Observation at T0 Homogeneous(immediately after (no phase separation) preparation) Texture: smoothgel Observation after Homogeneous 2 months at 25° C. (no phaseseparation) Texture: smooth gel Observation after Homogeneous 2 monthsat 45° C. (no phase separation) Texture: smooth gel

It is observed that the composition according to the invention istranslucent and stable at room temperature and at 45° C. for 2 months.

Composition A3 was mixed with 1 times its weight of 20-volumes oxidizingagent (6 g % of H2O2 AM); the mixture thus obtained was applied to locksof natural hair containing 90% white hairs.

The “mixture/lock” bath ratio is, respectively, 10/1 (g/g).

The leave-on time is 30 minutes, on a hotplate set at 27° C. Onconclusion of the leave-on time, the locks are rinsed and then driedunder a drying hood at 40° C.

The color of the locks was evaluated in the CIE L* a* b* system, using aDatacolor Spectraflash SF600X sectrocolorimeter.

L* Coloring obtained 28.03 with the mixture of composition A3 +oxidizing agent (according to the invention)

Composition A3 according to the invention allows an intense coloring ofthe keratin fibers to be obtained.

EXAMPLE 4

The following composition was prepared from the following ingredients inthe following proportions indicated in grams:

Composition A4 according to the invention Ammonium hydroxide 1.23Arginine 3 Ethanolamine 5 EDTA 0.2 Sodium Sulfite 0.5 Citric acid 3.3Sodium metasilicate 2 Toluene-2,5-diamine 0.16 4-amino-2-hydroxytoluene0.92 5-Amino-6-chloro-o-cresol 0.2 1-Hydroxyethyl 4,5- 1.44diaminopyrazole sulfate p-Aminophenol 0.12 Fragance qs Polyquaternium-111.84 Hexadimethrine chloride 1.2 Polyquaternium-6 0.8Cetylhydroxyethylcellulose 0.2 Sclerotium gum 1 Water Qs 100 Glycerol 10Cetrimonium chloride 0.25 Caprylyl/capryl glucoside 0.6 Ascorbic acid0.4

Visual Evaluation of the Stability of the Compositions

The stability of the dye composition was evaluated by observing it atT0, then after 48 hours at room temperature (25° C.), and then after 2months of storage at 45° C.

Composition A4 Observation at T0 Translucent gel (immediately afterHomogeneous preparation) at room (no phase separation) temperature (25°C.) Observation after Translucent gel 2 months at 45° C. Homogeneous (nophase separation)

It is observed that composition A4 according to the invention ishomogeneous and forms a translucent gel at T0. After 2 months at 45° C.,composition A4 according to the invention is stable and in the form of ahomogeneous and translucent gel.

Composition A4 was mixed with 1 times its weight of 20-volumes oxidizingagent (6 g % of H₂O₂ AM). The mixture thus obtained was applied to locksof natural hair containing 90% white hairs.

The “mixture/lock” bath ratio is, respectively, 10/1 (g/g).

The leave-on time is 30 minutes, on a hotplate set at 27° C. Onconclusion of the leave-on time, the locks are rinsed and then driedunder a drying hood at 40° C.

The color of the locks was evaluated in the CIE L* a* b* system, using aDatacolor Spectraflash SF600X spectrocolorimeter.

An intense coloring (L*=24.95) of the keratin fibers is obtained.

The invention claimed is:
 1. A composition for dyeing keratin fibers,comprising: at least one oxidation dye; at least one scleroglucan gumpresent in a total amount of greater than or equal to 0.5% by weight,relative to the total weight of the composition; at least one mineralalkaline agent; and at least one organic alkaline agent chosen fromalkanolamines.
 2. The composition of claim 1, wherein the at least onescleroglucan gum is present in an amount ranging from 0.5% to 10% byweight, relative to the total weight of the composition.
 3. Thecomposition of claim 1, wherein the at least one oxidation dye is chosenfrom benzene-based oxidation bases, or salts thereof, optionallycombined with at least one coupler chosen from meta-phenylenediamines,meta-aminophenols, meta-diphenols, naphthalene-based couplers,heterocyclic couplers, or salts thereof.
 4. The composition of claim 1,wherein the at least one oxidation dye is chosen frompara-phenylenediamines, bis(phenyl)alkylenediamines, para-aminophenols,ortho-aminophenols, heterocyclic bases, or salts thereof.
 5. Thecomposition of claim 1, wherein the at least one mineral alkaline agentis chosen from aqueous ammonia, ammonia precursors, alkali metal oralkaline-earth metal silicates, phosphates, carbonates, bicarbonates,sodium or potassium hydroxide, or mixtures thereof.
 6. The compositionof claim 1, wherein the at least one mineral alkaline agent is presentin a total amount ranging from 0.1% to 10% by weight, relative to thetotal weight of the composition.
 7. The composition of claim 1, whereinthe alkanolamines are chosen from monoalkanolamines, dialkanolamines,trialkanolamines, or mixtures thereof, comprising one to three identicalor different C₁ to C₄ hydroxyalkyl radicals.
 8. The composition of claim1, wherein the alkanolamines are chosen from monoethanolamine,diethanolamine, triethanolamine, monoisopropanolamine,diisopropanolamine, N,N-dimethylethanolamine,2-amino-2-methyl-1-propanol, triisopropanolamine,2-amino-2-methyl-1,3-propanediol, 3-amino-1,2-propanediol,3-dimethylamino-1,2-propanediol, tris(hydroxymethyl)aminomethane, ormixtures thereof.
 9. The composition of claim 1, wherein the at leastone organic alkaline agent chosen from alkanolamines is present in atotal amount ranging from 0.5% to 10% by weight, relative to the totalweight of the composition.
 10. The composition of claim 1, wherein theat least one mineral alkaline agent is chosen from aqueous ammonia(ammonium hydroxide) and the at least one organic alkaline agent chosenfrom alkanolamines is chosen from monoethanolamine.
 11. The compositionof claim 1, further comprising at least one additional alkaline agentother than the at least one mineral alkaline agent and the at least oneorganic alkaline agent chosen from alkanolamines.
 12. The composition ofclaim 11, wherein the at least one additional alkaline agent is chosenfrom basic amino acids comprising histidine, lysine, arginine,ornithine, and citrulline.
 13. The composition of claim 1, furthercomprising at least one nonionic associative polymer chosen fromcelluloses modified with groups including at least one fatty chain. 14.The composition of claim 13, wherein the at least one nonionicassociative polymer is chosen from hydroxyethylcelluloses modified withgroups including at least one fatty chain chosen from an alkyl group, anarylalkyl group, an alkylaryl group, or a mixture thereof.
 15. Thecomposition of claim 1, further comprising at least one cationic polymerchosen from: (1) dialkyldiallylammonium homopolymers; and/or (2)cationic polymers that are constituted of repeating units correspondingto the formula (IV):

wherein in formula (IV), R₁, R₂, R₃, and R₄, which may be identical ordifferent, are chosen from an alkyl or hydroxyalkyl radical containingfrom 1 to 4 carbon atoms, n and p are integers ranging from 2 to 20, andX— is an anion derived from a mineral or organic acid.
 16. Thecomposition of claim 1, further comprising at least one chemicaloxidizing agent.
 17. The composition of claim 16, wherein the at leastone chemical oxidizing agent is chosen from hydrogen peroxide, or atleast one system generating hydrogen peroxide.
 18. A method for dyeingkeratin fibers, comprising: applying to the keratin fibers a dyecomposition (A) and an oxidizing composition (B); wherein the dyecomposition (A) comprises: at least one oxidation dye; at least onescleroglucan gum present in a total amount of greater than or equal to0.5% by weight, relative to the total weight of the dye composition (A);at least one mineral alkaline agent; and at least one organic alkalineagent chosen from alkanolamines; and wherein the oxidizing composition(B) comprises at least one chemical oxidizing agent; and wherein theoxidizing composition (B) is extemporaneously mixed with the dyecomposition (A) just before being applied to the keratin fibers, oralternatively, the dye composition (A) and the oxidizing composition (B)are applied sequentially to the keratin fibers without intermediaterinsing.
 19. The method of claim 18, wherein the at least one chemicaloxidizing agent is chosen from hydrogen peroxide and/or at least onesystem generating hydrogen peroxide.
 20. A multi-compartment kitcomprising: a first compartment containing a dye composition comprising:at least one oxidation dye; at least one scleroglucan gum in a totalamount of greater than or equal to 0.5% by weight, relative to the totalweight of the dye composition; at least one mineral alkaline agent; andat least one organic alkaline agent chosen from alkanolamines; and asecond compartment containing at least one oxidizing compositioncomprising at least one chemical oxidizing agent.